CN111683021A - Multi-protocol terminal with double-path redundant output for switch - Google Patents
Multi-protocol terminal with double-path redundant output for switch Download PDFInfo
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- CN111683021A CN111683021A CN202010692473.8A CN202010692473A CN111683021A CN 111683021 A CN111683021 A CN 111683021A CN 202010692473 A CN202010692473 A CN 202010692473A CN 111683021 A CN111683021 A CN 111683021A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/35—Switches specially adapted for specific applications
- H04L49/351—Switches specially adapted for specific applications for local area network [LAN], e.g. Ethernet switches
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/55—Prevention, detection or correction of errors
- H04L49/552—Prevention, detection or correction of errors by ensuring the integrity of packets received through redundant connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/60—Software-defined switches
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a double-path redundancy output multi-protocol terminal for a switch, which is used for solving the problem that double-path redundancy cannot be realized through one switch because the ID of each port number of the conventional FC switch is different; the multi-protocol terminal is provided with four interfaces of CAN, Ethernet, VGA and UART, wherein the four interfaces CAN be transmitted simultaneously, all received data are subjected to protocol analysis firstly, and are sent to the FC protocol conversion module for FC-AE-1553B protocol conversion, converted FC frames are internally subjected to double-path redundancy output to the GTX module, the multi-protocol terminal realizes double-path redundancy communication of one switch by changing the frame ID of the double-path redundancy, the multi-protocol terminal has two paths of AB, when one optical fiber in the AB path of the multi-protocol terminal is disconnected, all data CAN be transmitted normally.
Description
Technical Field
The invention relates to a multi-protocol terminal, in particular to a multi-protocol terminal with double-path redundant output for a switch.
Background
The multi-protocol terminal packages a plurality of different protocols into FC-AE-1553B protocol format and outputs the protocols through FC optical fibers. With the expansion of system functions and the improvement of data rate, the types of interfaces in the system are more and more, and the topology is more and more complex. The wiring difficulty of the system is increased more and more, the volume, the power consumption and the weight are increased, and the optical fiber has the advantages of high reliability, high transmission speed, light weight and the like.
The port number IDs of the existing FC switch are different, and double-path redundancy cannot be realized through one switch.
Disclosure of Invention
The invention aims to provide a multi-protocol terminal with two-way redundancy output for a switch, aiming at solving the problem that the two-way redundancy can not be realized by one switch because the IDs of each port number of the conventional FC switch are different; the multi-protocol terminal is provided with four interfaces of CAN, Ethernet, VGA and UART, wherein the four interfaces CAN be transmitted simultaneously, all received data are subjected to protocol analysis firstly, and are sent to an FC protocol conversion module for FC-AE-1553B protocol conversion, a converted FC frame is internally subjected to double-path redundancy output to a GTX module, the multi-protocol terminal realizes double-path redundancy communication of one switch by changing a frame ID of the double-path redundancy, the multi-protocol terminal is provided with two paths of AB and CAN be inserted into any interface of the FC switch, when the path AB of the multi-protocol terminal is disconnected by one optical fiber, all data CAN be transmitted normally;
the purpose of the invention can be realized by the following technical scheme: the switch uses the multi-protocol terminal of the dual-channel redundant output, including CAN interface, Ethernet interface, VGA interface, UART interface, CAN agreement analysis module, Ethernet agreement analysis module, UART agreement analysis module, VGA agreement analysis module, FC agreement conversion module, GTX0 module and GTX1 module;
the CAN interface, the Ethernet interface, the VGA interface and the UART interface are all connected with device source end equipment, the CAN interface, the Ethernet interface, the VGA interface and the UART interface are used for receiving data and transmitting the data, and the CAN interface, the Ethernet interface, the VGA interface and the UART interface respectively transmit the received data to the corresponding CAN protocol analysis module, the Ethernet protocol analysis module, the VGA protocol analysis module and the UART protocol analysis module; the CAN protocol analysis module, the Ethernet protocol analysis module, the VGA protocol analysis module and the UART protocol analysis module are used for carrying out protocol analysis on received data and sending the analyzed data to the FC protocol conversion module;
the FC protocol conversion module is used for performing FC-AE-1553B protocol conversion on the analyzed data to obtain an FC frame, and the converted FC frame performs double-path redundancy output in the FC protocol conversion module to the GTX0 module and the GTX1 module;
the output ends of the GTX0 module and the GTX1 module are both connected with optical modules, and the optical modules are in communication connection with the interface of the FC-AE-1553 switch through optical fibers.
Preferably, the number of the interfaces of the FC-AE-1553 switch is several, and the interfaces are respectively marked as SFF0, SFF1, … … and SFFn; n is a natural number.
Preferably, optical fiber early warning units are installed inside the GTX0 module and the GTX1 module, the optical fiber early warning units are used for detecting and early warning optical fibers, and each optical fiber early warning unit comprises a storage module, a sending module, a receiving module and an early warning module;
the storage module is used for storing optical fiber information and an early warning mobile phone number of an optical fiber connected with the GTX0 module or the GTX1 module; the optical fiber information includes installation time of the optical fiber and length of the optical fiber;
the early warning module is used for carrying out early warning analysis on the optical fiber information stored in the storage module, and the specific analysis steps are as follows:
the method comprises the following steps: calculating the time difference between the installation time of the optical fiber and the current time to obtain installation time, and marking the installation time as T;
step two: when T is larger than a set threshold value, the early warning module generates a sending instruction and sends the sending instruction to the sending module; the sending module generates an optical fiber detection signal after receiving the sending instruction and transmits the optical fiber detection signal to an interface of the FC-AE-1553 switch through the optical module and the optical fiber; meanwhile, the early warning module counts the sending time of the optical fiber detection signal and marks the sending time as M1;
an interface of the FC-AE-1553 switch receives the optical fiber detection signal, generates an optical feedback signal and sends the optical feedback signal to a receiving module through an optical module and an optical fiber;
step three: starting timing at the sending moment, marking the optical fiber as a broken optical fiber and simultaneously generating an optical fiber broken early warning instruction when the receiving module does not receive the optical feedback signal within a preset time range, and sending the optical fiber broken early warning instruction, the numbers of the multi-protocol terminals corresponding to the two ends of the optical fiber and the numbers of the interfaces of the FC-AE-1553 switch to the mobile phone terminal corresponding to the early warning mobile phone number by the early warning module;
step four: when the receiving module receives the optical feedback signal in the preset time range, calculating the sending interval duration, wherein the specific calculation steps are as follows:
s1: the time when the optical feedback signal is received is marked as M2; calculating the time difference between M1 and M2 to obtain a feedback duration and marking the feedback duration as D;
s2: obtaining a sending interval duration J by using a formula J ═ 1/D × b1+ (1/T) × b 2;
s3: and when the time difference between the sending time and the current time is equal to the sending interval duration, the early warning module generates a sending instruction and sends the sending instruction to the sending module.
Compared with the prior art, the invention has the beneficial effects that:
1. the multi-protocol terminal is provided with four interfaces of CAN, Ethernet, VGA and UART, wherein the four interfaces CAN be transmitted simultaneously, all received data are subjected to protocol analysis firstly, and are sent to the FC protocol conversion module for FC-AE-1553B protocol conversion, a converted FC frame is internally subjected to double-path redundancy output to the GTX module, the multi-protocol terminal realizes double-path redundancy communication of one switch by changing the frame ID of the double-path redundancy, the multi-protocol terminal is provided with two paths AB and CAN be inserted into any interface of the FC switch, and when one optical fiber is disconnected in the path AB of the multi-protocol terminal, all data CAN be transmitted normally; the cable transmission is changed into optical fiber transmission, so that the advantages of light weight, low power consumption and the like are realized, a plurality of different protocols are converted into one optical fiber for transmission, and the wiring is simple;
2. the early warning analysis is carried out on the optical fiber information stored in the storage module through the early warning module, the early warning detection is carried out in combination with the installation time, the detection of the open circuit of the optical fiber is facilitated in time, the maintenance is facilitated in time, meanwhile, the feedback time and the installation time are obtained through calculating the time difference between the sending time and the receiving time, the sending interval time is obtained through the recycling formula, and the early warning detection is conveniently and reasonably carried out on the optical fiber through the analysis of the sending interval time.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a functional block diagram of a multi-protocol terminal of the present invention;
FIG. 2 is a topology diagram of a multi-protocol terminal connection of the present invention;
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the switch uses a dual-path redundant output multi-protocol terminal, which includes a CAN interface, an ethernet interface, a VGA interface, a UART interface, a CAN protocol parsing module, an ethernet protocol parsing module, a UART protocol parsing module, a VGA protocol parsing module, an FC protocol conversion module, a GTX0 module, and a GTX1 module;
the CAN interface, the Ethernet interface, the VGA interface and the UART interface are all connected with device source end equipment, the CAN interface, the Ethernet interface, the VGA interface and the UART interface are used for receiving data and transmitting the data, and the CAN interface, the Ethernet interface, the VGA interface and the UART interface respectively transmit the received data to the corresponding CAN protocol analysis module, the Ethernet protocol analysis module, the VGA protocol analysis module and the UART protocol analysis module; the CAN protocol analysis module, the Ethernet protocol analysis module, the VGA protocol analysis module and the UART protocol analysis module are used for carrying out protocol analysis on received data and sending the analyzed data to the FC protocol conversion module;
the FC protocol conversion module is used for performing FC-AE-1553B protocol conversion on the analyzed data to obtain an FC frame, and the converted FC frame performs double-path redundancy output in the FC protocol conversion module to the GTX0 module and the GTX1 module;
the output ends of the GTX0 module and the GTX1 module are both connected with optical modules, and the optical modules are in communication connection with the interface of the FC-AE-1553 switch through optical fibers.
The number of the interfaces of the FC-AE-1553 switch is several, and the interfaces are respectively marked as SFF0, SFF1, … … and SFFn; n is a natural number.
The multi-protocol terminal is provided with four interfaces of CAN, Ethernet, VGA and UART, wherein the four interfaces CAN be transmitted simultaneously, all received data are subjected to protocol analysis firstly, and are sent to an FC protocol conversion module for FC-AE-1553B protocol conversion, a converted FC frame is internally subjected to double-path redundancy output to a GTX module, under the general condition, the FC communication only realizes double-path redundancy under a point-to-point mode, the frame information of the double-path redundancy is completely consistent, but the port number IDs of each FC switch are different, so that the double-path redundancy cannot be realized through one switch;
the multi-protocol terminal not only realizes data forwarding, but also realizes point-to-point and switched redundant transmission. The system has the characteristics of high reliability, stable transmission and the like of an FC protocol, and has the functions of dual-path optical fiber transmission hot backup and the like;
the multiprotocol terminal has two paths AB, can be inserted into any interface of the FC switch, and can automatically search ID for initialization configuration, so that the operation is convenient, and the operation can be realized by inserting. And then the upper computer realizes the communication between the ports on the network through the configuration related command.
For example, the multi-protocol terminal 1 connected to the interfaces of the switch SFF0 and SFF1 should perform UART communication with the multi-protocol terminal 3 connected to the interfaces of the switch SFF4 and SFF5, and also should perform VGA communication with the multi-protocol terminal 4 connected to the interfaces of the switch SFF6 and SFF7, the upper computer respectively configures commands to the three multi-protocol terminals through the connect interface, after the parameters are configured, the multi-protocol terminal 1 and the multi-protocol terminal 3 can communicate UART data, and the multi-protocol terminal 1 and the multi-protocol terminal 4 can implement VGA data transmission.
Here, the AB path of any multi-protocol terminal has a broken optical fiber, and all data can be transmitted normally.
The optical fiber early warning units are arranged in the GTX0 module and the GTX1 module and used for detecting and early warning optical fibers, and each optical fiber early warning unit comprises a storage module, a sending module, a receiving module and an early warning module;
the storage module is used for storing optical fiber information and an early warning mobile phone number of an optical fiber connected with the GTX0 module or the GTX1 module; the optical fiber information includes installation time of the optical fiber and length of the optical fiber;
the early warning module is used for carrying out early warning analysis on the optical fiber information stored in the storage module, and the specific analysis steps are as follows:
the method comprises the following steps: calculating the time difference between the installation time of the optical fiber and the current time to obtain installation time, and marking the installation time as T;
step two: when T is larger than a set threshold value, the early warning module generates a sending instruction and sends the sending instruction to the sending module; the sending module generates an optical fiber detection signal after receiving the sending instruction and transmits the optical fiber detection signal to an interface of the FC-AE-1553 switch through the optical module and the optical fiber; meanwhile, the early warning module counts the sending time of the optical fiber detection signal and marks the sending time as M1;
an interface of the FC-AE-1553 switch receives the optical fiber detection signal, generates an optical feedback signal and sends the optical feedback signal to a receiving module through an optical module and an optical fiber;
step three: starting timing at the sending moment, marking the optical fiber as a broken optical fiber and simultaneously generating an optical fiber broken early warning instruction when the receiving module does not receive the optical feedback signal within a preset time range, and sending the optical fiber broken early warning instruction, the numbers of the multi-protocol terminals corresponding to the two ends of the optical fiber and the numbers of the interfaces of the FC-AE-1553 switch to the mobile phone terminal corresponding to the early warning mobile phone number by the early warning module;
step four: when the receiving module receives the optical feedback signal in the preset time range, calculating the sending interval duration, wherein the specific calculation steps are as follows:
s1: the time when the optical feedback signal is received is marked as M2; calculating the time difference between M1 and M2 to obtain a feedback duration and marking the feedback duration as D;
s2: obtaining a sending interval duration J by using a formula J ═ 1/D × b1+ (1/T) × b 2; wherein b1 and b2 are both preset proportionality coefficients;
s3: when the time difference between the sending time and the current time is equal to the sending interval duration, the early warning module generates a sending instruction and sends the sending instruction to the sending module;
the early warning module performs early warning analysis on optical fiber information stored in the storage module, early warning detection is performed in combination with installation time, detection of open circuit of an optical fiber is facilitated in time, maintenance is facilitated in time, meanwhile, feedback time and installation time are obtained by calculating time difference between M1 and M2, sending interval time is obtained by using a formula J ═ 1/D (x b1+ (1/T) x b2, and early warning detection is performed on the optical fiber conveniently and reasonably;
when the invention is used, the multi-protocol terminal is provided with four interfaces of CAN, Ethernet, VGA and UART, the four interfaces CAN be transmitted simultaneously, all received data is firstly subjected to protocol analysis and is sent to the FC protocol conversion module for FC-AE-1553B protocol conversion, a converted FC frame is internally subjected to double-path redundancy output to the GTX module, the multi-protocol terminal realizes double-path redundancy communication of one switch by changing the frame ID of the double-path redundancy, the multi-protocol terminal is provided with two paths AB which CAN be inserted into any interface of the FC switch, when one optical fiber is disconnected in the AB path of the multi-protocol terminal, all data CAN be ensured to be normally transmitted, the early warning module is used for early warning and analyzing the optical fiber information stored in the storage module and is combined with the installation duration for early warning and detection, the disconnection of the optical fiber is convenient to detect and maintain in time, meanwhile, feedback time length is obtained by calculating the time difference between the sending time and the receiving time, the installation time length is combined, sending interval time length is obtained by using a formula, and early warning detection is conveniently and reasonably performed on the optical fiber through analysis of the sending interval time length.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (3)
1. The switch is provided with a double-path redundant output multi-protocol terminal which is characterized by comprising a CAN interface, an Ethernet interface, a VGA interface, a UART interface, a CAN protocol analysis module, an Ethernet protocol analysis module, a UART protocol analysis module, a VGA protocol analysis module, an FC protocol conversion module, a GTX0 module and a GTX1 module;
the CAN interface, the Ethernet interface, the VGA interface and the UART interface are all connected with device source end equipment, the CAN interface, the Ethernet interface, the VGA interface and the UART interface are used for receiving data and transmitting the data, and the CAN interface, the Ethernet interface, the VGA interface and the UART interface respectively transmit the received data to the corresponding CAN protocol analysis module, the Ethernet protocol analysis module, the VGA protocol analysis module and the UART protocol analysis module; the CAN protocol analysis module, the Ethernet protocol analysis module, the VGA protocol analysis module and the UART protocol analysis module are used for carrying out protocol analysis on received data and sending the analyzed data to the FC protocol conversion module;
the FC protocol conversion module is used for performing FC-AE-1553B protocol conversion on the analyzed data to obtain an FC frame, and the converted FC frame performs double-path redundancy output in the FC protocol conversion module to the GTX0 module and the GTX1 module;
the output ends of the GTX0 module and the GTX1 module are both connected with optical modules, and the optical modules are in communication connection with the interface of the FC-AE-1553 switch through optical fibers.
2. The dual-path redundant output multi-protocol terminal for switch of claim 1, wherein the number of the interfaces of the FC-AE-1553 switch is represented as SFF0, SFF1, … … and SFFn; n is a natural number.
3. The multi-protocol terminal with two-way redundant output for the switch of claim 1, wherein the GTX0 module and the GTX1 module are each internally provided with an optical fiber pre-warning unit, the optical fiber pre-warning unit is used for detecting and pre-warning optical fibers, and the optical fiber pre-warning unit comprises a storage module, a transmitting module, a receiving module and a pre-warning module;
the storage module is used for storing optical fiber information and an early warning mobile phone number of an optical fiber connected with the GTX0 module or the GTX1 module; the optical fiber information includes installation time of the optical fiber and length of the optical fiber;
the early warning module is used for carrying out early warning analysis on the optical fiber information stored in the storage module, and the specific analysis steps are as follows:
the method comprises the following steps: calculating the time difference between the installation time of the optical fiber and the current time to obtain installation time, and marking the installation time as T;
step two: when T is larger than a set threshold value, the early warning module generates a sending instruction and sends the sending instruction to the sending module; the sending module generates an optical fiber detection signal after receiving the sending instruction and transmits the optical fiber detection signal to an interface of the FC-AE-1553 switch through the optical module and the optical fiber; meanwhile, the early warning module counts the sending time of the optical fiber detection signal and marks the sending time as M1;
an interface of the FC-AE-1553 switch receives the optical fiber detection signal, generates an optical feedback signal and sends the optical feedback signal to a receiving module through an optical module and an optical fiber;
step three: starting timing at the sending moment, marking the optical fiber as a broken optical fiber and simultaneously generating an optical fiber broken early warning instruction when the receiving module does not receive the optical feedback signal within a preset time range, and sending the optical fiber broken early warning instruction, the numbers of the multi-protocol terminals corresponding to the two ends of the optical fiber and the numbers of the interfaces of the FC-AE-1553 switch to the mobile phone terminal corresponding to the early warning mobile phone number by the early warning module;
step four: when the receiving module receives the optical feedback signal in the preset time range, calculating the sending interval duration, wherein the specific calculation steps are as follows:
s1: the time when the optical feedback signal is received is marked as M2; calculating the time difference between M1 and M2 to obtain a feedback duration and marking the feedback duration as D;
s2: obtaining a sending interval duration J by using a formula J ═ 1/D × b1+ (1/T) × b 2;
s3: and when the time difference between the sending time and the current time is equal to the sending interval duration, the early warning module generates a sending instruction and sends the sending instruction to the sending module.
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| CN113722250A (en) * | 2021-09-15 | 2021-11-30 | 上海赛治信息技术有限公司 | Two-way redundant data exchange method and system based on Aurora protocol |
| CN114003441A (en) * | 2021-12-31 | 2022-02-01 | 北京国科天迅科技有限公司 | Hot backup redundancy processing method and device for switch |
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Application publication date: 20200918 |